Is CVE-2026-56037 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-56037 being exploited in the wild.

How severe is CVE-2026-56037?

High severity, with a CVSS score of 8.8, published 2 July 2026.

Is there a fix for CVE-2026-56037?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-56037 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-56037?

Check whether you run Themify Popup at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-56037: Themify Themify Popup PHP object injection

CVE-2026-56037 · Severity: high · CVSS 8.8 · Published 2026-07-02

Themify Popup, a WordPress plugin used to create and manage promotional popups, contains a security flaw that allows authenticated users to perform PHP Object Injection. If exploited, an attacker could potentially execute unauthorized code, access sensitive database information, or disrupt the website's availability. This could lead to a full site takeover or significant data theft depending on the server configuration.

Vendors: Themify.

Quick answers

Is CVE-2026-56037 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-56037 being exploited in the wild.
How severe is CVE-2026-56037?: High severity, with a CVSS score of 8.8, published 2 July 2026.
Which products and versions are affected?: Themify Popup <= 1.4.3.
Is there a fix for CVE-2026-56037?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-56037 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-56037?: Check whether you run Themify Popup at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The Themify Popup plugin for WordPress is vulnerable to PHP Object Injection in versions up to and including 1.4.3. The vulnerability stems from the deserialization of untrusted data (CWE-502) without proper validation. An attacker with 'Contributor' level privileges or higher can exploit this to inject arbitrary PHP objects. If a suitable Property-Oriented Programming (POP) chain is present on the system, this can lead to remote code execution, SQL injection, or file system traversal. The issue is resolved in version 1.4.4.

Affected products

Themify Themify Popup <= 1.4.3

Timeline

2025-07-16: other: Vulnerability reported by researcher 0xd4rk5id3
2026-06-23: advisory: Initial advisory published by Patchstack
2026-07-02: disclosed: CVE published to NVD dataset

References

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